Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
su tien » su kien, su hien, tu tieng
sach v » sach va, sach 2, sach vay
va cao » va cac, va co, va dao
vi su » va su, ve su, ki su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach v) or (sach y)) nang xa hoi. hieu va cao xuc ((ban thanh) OR (ban hanh)) vi su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach v) OR (sach y)) nang xa hoi. hieu va cao xuc ((ban thanh) OR (ban hanh)) vi su tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach v) or (sach y)) nang xa hoi. hieu va cao xuc ((ban thanh) OR (ban hanh)) vi su tien".
• Adding a wildcard symbol may retrieve word variants: tu ((sach v) or (sach y)) nang xa hoi. hieu va cao xuc ((ban thanh) OR (ban hanh)) vi su tien*.